|Kite flying is the hobby of flying kites. A kite is an object
that flies by opposing the force of the wind with the tension of a string
held by the operator. See types of kites, below, for a list of different
types and styles.
Those flown by American children are often shaped like a geometric kite. Kite flying is very popular in Japan, India, and many other countries. In those countries, Thailand, and some other countries 'kite fights' are held, in which many people gather and fly kites and try to snag each other's kites or cut the other kite down. Some kite "fighters" pass the string through a solution of ground glass powder and glue. The resulting strings are abrasive and able to sever the competitor's kites. Such practice is dangerous since the abrasive strings can catch on people.
Kite flying traces its roots back to early China, and the development of paper. Chinese kite designs particularly tend to emulate flying insects, birds, and other beasts, real and mythical. The finest modern chinese kites are made from split bamboo (usually golden bamboo), covered with silk and hand painted to form an overall artistic statement within a tradition of long standing. For larger kites, clever hinges and latches allow the kite to be disassembled and compactly folded for storage or transport. Lower cost kites in quantity production may be made from printed polyester, which will have longer useful life if frequently flown.
Kite flying depends on lightweight, but strong twine. It also depends on the ability to produce paper or tightly woven cloth. Kites typically consist a one or more spars (sticks), that hold a sail of fabric taut. Classic kites use bamboo, rattan or other strong but flexible wood for the spars, and paper or light fabrics such as silk for the sails. Modern kites are made with synthetic materials: nylon or more exotic fabrics for the sails, and fiberglass or carbon fiber spars.
Kites are designed with different shapes, forms and sizes, from historic flat geometric designs, through box kits and other aerodynamic forms, to modern sparless inflatable designs.
Modern acrobatic kites use more than one line to allow fine control in the kite's angle to the wind. In recent years, multi-line kite flying has developed into a sport, with competitions for precision flying and artistic interpretation of music.
Kite festivals are held where kites from around the world are displayed in the sky. The above picture was a Chinese dragon kite over a hundred feet long which flew in the annual Berkeley, CA kite fest in 2000.
Kites have been used militarily in the past, both for observation by lifting an observer above the field of battle, and for delivery of munitions. They have also been used for scientific purposes, for example Benjamin Franklin's famous electrical experiment. Kites are the precursors to aircraft, and were instrumental in the development of early flying craft.